(A) Lateral view of Nv eve expression in early gastrula embryo. (B) Nv odd expression alone in the same embryo. (C) Merge of Nv eve and Nv odd channels, illustrating their relative phasing. Nv eve mRNA is pseudo-colored pink, Nv odd is in green. Arrowheads indicate position of a posterior doublet of odd stripes. (D) Dorsolateral view of Nv eve in later gastrula embryo. (E) Nv odd expression alone in the same embryo. Arrowheads indicate position of posterior Nv odd stripes 6, 7 and 8. (F) Merge of Nv eve and Nv odd channels, illustrating their relative phasing. (G) Lateral view of Nv eve expression in blastoderm embryo. Arrowhead indicates position of Nv eve stripe 5. (H) Nv runt expression in the same blastoderm embryo. (I) Merge of Nv eve (green) and Nv runt (pink) channels, indicating relative phasing. (J) Lateral view of Nv eve expression in germ-band-extended embryo. Numbers indicate identity of Nv eve stripe. (K) Nv runt expression alone in the same embryo. Arrowheads indicate position of posterior primary Nv runt stripes. (L) Merge of Nv eve (green) and Nv runt (pink) channels, indicating relative phasing. Note that posterior Nv runt stripes, though faint, appear to be positioned posterior to odd-numbered Nv eve segmental stripes. (M) Lateral view of Nv eve expression in early gastrula embryo. Line indicates broadening stripe 6. (N) Nv hairy expression in the same gastrula embryo. Arrowheads indicate positions of three late forming posterior double-segment stripes. (O) Merge of Nv eve (pink) and Nv hairy (green) channels, indicating relative phasing. (P) Ventral view of gastrula embryo showing Nv eve expression alone. Arrowheads indicate positions of single-segment stripes derived from eve stripe 6. (Q) Nv hairy expression alone in the same gastrula embryo. Line indicates extended anterior domain continuous with stripe 1. (R) Merge of Nv eve (green) and Nv hairy (pink) channels, illustrating relative phasing.
DOI:
http://dx.doi.org/10.7554/eLife.01440.014